There is an app in Google Play that allows to check your phone's capability of USB OTG or USB Host Mode, but I couIdn't test it with my Desire X, because I don't have any USB peripherals with a micro-usb connector. The app only says there are "classes" found (don't ask me what that means) that seem to support it. I couldn't see anything in the manual about it either.

The One X doesn't even have USB OTG with the kernel it uses now, but they might enable it in a future kernel update (read that somewhere).

Hahaha I am a bit late on this one, but all aspects of USB OTG are functional on the Desire X w/ stock and some custom roms. This includes storage, keyboard/mouse, gamepads and much much more. Works flawlessly, and better than the Nexus 7 2013 on Stock can manage (no usb storage support!) One of the reasons I switched to CM 11 on my Nexus.

Hahaha I am a bit late on this one, but all aspects of USB OTG are functional on the Desire X w/ stock and some custom roms. This includes storage, keyboard/mouse, gamepads and much much more. Works flawlessly, and better than the Nexus 7 2013 on Stock can manage (no usb storage support!) One of the reasons I switched to CM 11 on my Nexus.

The thing is, USB OTG works only from Android version 4.1 and newer. 4.0 has no OTG support.

XDA Developers was founded by developers, for developers. It is now a valuable resource for people who want to make the most of their mobile devices, from customizing the look and feel to adding new functionality.Are you a developer?